Triple insulated wire (Triple insulated wire), also known as triple insulated wire, is a high-performance insulated wire newly developed in the world in recent years. This wire has three insulating layers, and the middle is a core wire. The first layer is a golden polyamide film, which is called "golden film" in foreign countries. Its thickness is several microns, but it can withstand 1kV pulse high voltage; the second layer is a highly insulating paint coating; The third layer (the outermost layer) is a transparent fiberglass layer.